Shingle making or wood shake cutting machine



Dec. 12, 1939. E. H. JENKINS 2,183,479 SHINGLE MAKING 0R woon SHAKECUTTING MACHINE Filed July 27, 1937 2 Sheets-Sheet '1 zzywzw/t/ezfhmATTORNEYS E. H. JENKINS Dec. 12, 1939.

' SHINGLE MAKING on woon SHAKE CUTTING MACHINE Fil ed'Jfily 27, 1957 2Sheets-Sheet 2 mag III

| F as ATTORNEYS Patented Dec. 12, 1939 PATENT OFFlCE SHINGLE MAKING ORWOOD SHAKE CUTTING MACHINE Elsworth H. Jenkins, North Bend, Wash.'

Application July 2'7,

' 2 Claims.

The invention relates to a shingle making or wood shake cutting machineand more especially toa reciprocatory power driven wood splittingmachine.

The primary object of the invention is the provision of a machine ofthis character, wherein wood in block form can be held in a manner forthe cutting or splitting thereof into shakes or shingles, the cutterbeing of the double cutting edge type and is reciprocated in the machineso as to enable the cutting or splittingoperation to be carried forthwith dispatch and under each stroke of the said cutter or blade throughreciprocatory motion thereof.

Another object of the invention is the provision of a machine of thischaracter, wherein the work holder is of novel construction and alsotheblade carrier is novel for the making of shakes or shingles economicallyand with dispatch.

A further object of the invention is the provision of a machine of thischaracter, wherein the blade carriage under reciprocation assures doublecutting action and the work being held for selfadjustment with relationto the cutter so that tapered shingles or shakes may be had.

A further object of the invention is the provision of a machine of thischaracter, which is simple in its construction, thoroughly reliable andeffective in operation, mechanically actuated, strong, durable, andinexpensive to manufacture.

With these and other objects in view, the invention consists in thefeatures of construction, combination and arrangement of parts as willbe hereinafter more fully described, illustrated in 35 the accompanyingdrawings, which disclose the preferred embodiment of the invention andpointed out in the claims hereunto appended.

In the accompanying drawings:

Figure 1 is a top plan view partly broken away of a machine constructedin accordance with the invention.

Figure 2 is a vertical longitudinal sectional view taken on the line2--2 of Figure 1 looking in the direction'of the arrows.

Figure 3 is a vertical transverse sectional view taken on the line 3-3of Figure 1 looking in the direction of the arrows.

Figure 4 is an enlarged vertical longitudinal sectional view through thecarriage.

5 Figure 5 is a sectional view on the line 5-5 of Figure 4 looking inthe direction of the arrows Figure 6 is a side elevation of the worktilt gauge.

Figure 7 is a bottom plan view thereof. 55 Figure 8 is'a perspectiveView of one of the 1937, Serial No. 155,910 (01'. 144-162) fulcrumplates for the work in association with the carriage. 1

Similar reference characters indicate corresponding parts throughout theseveral views in the drawings.

Referring to the drawings in detail, A designatesthe main stand or frameof the machine involving spaced parallel upper or top side sills Ill,vertical legs II and longitudinal and transverse braces I2 and i3,respectively, these being .li) made fast to the vertical legs ll whilethe sills iii are fixed to the upper ends of said legs and through theuse of the said braces the frame or stand is assured of rigidity andstrength. At the inner faces of the side sills Ill and extended 35longitudinally of the frame or stand A are track rails l4, these beingin the same plane with each other and are preferably made from invertedsubstantially L-shaped metal bars.

Arranged for reciprocation longitudinally of 20 the frame or stand A isa skeleton carriage I5 having traction rollers 16 movable upon the trackrails M for the travel of the said carriage in a horizontal plane andbelow the plane of the top edges of the side sills it] of the frame orstand. The, opposite sides of the carriage l5 medially thereof haveformed therewith depending brackets I! in which are arranged studspindles l8,

these being projected laterally and outwardly from opposite sides of theframe or stand A for the loose connection of pivot eye terminals l9therewith of throw arms 2t, these being pivoted at the other endstoturning cranks 2i as at 22, the cranks being fixed to a power shaft 23journaled transversely of the frame or stand A at one end thereof inbearings 24 and this shaft carries a belt wheel or pulley 25 for a beltor the like (not shown) and operated from any suitable power source.Through the action of the cranks 2i on the rotation of the shaft 23, thecarriage It will be reciprocated longitudinally in the frame or stand Atraveling upon the track rails l4 therein.

Supported by the carriage l5 midway thereof and disposed crosswise ofthe same is a double cutting edge knife or blade 26, the double cuttingedges 21 being reversely beveled while beneath the said knife or bladeis a rocking gauge, its axle 28 being in vertical alignment with a knifeor blade and involves side shoes 29 and crossed end gauge plates 30joined with each other to effect a unitary structure, the rocking gaugebeing adapted for swinging movement on a horizontal axis constituted bythe axle 28 which has'its ends accommodated in vertical guide slots 30'formed in the sides of the carriage I5 while the shoes 29 at oppositeends thereof are hollow and carry adjustable screws 3|, these beingengageable with the side overhanging flanges 32 of the carriage i 5 tolimit the reverse tilting operation of the gauge to assure the properset of a piece of work such as a wood block 33 to be split or cut forthe shake splitting or shingle cutting operation of the machine throughthe instrumentality of the knife or blade 25. The axle 28 has actingthereon coiled tensioning springs 34, these being seated at 35, theseats being carried by the carriage I5 and are of sufficient tension tohold the said axle 28 elevated in the slots 30 in the carriage to havethe gauge normally at a maximum raised position yet allowing the latterto yield downwardly in emergencies. These springs are suitably anchoredto the axle 28 so as to avoid the possibility of the slipping out of thesprings 34 from beneath the axle, this also being true with respect tothe seats to avoid the said springs slipping ofi of the same in theworking of the gauge. The work 33 is held between a pair of work holdingbars or slats 36 which are arranged parallel with each other and arereleasably disposed transversely of the frame or stand A, being peggedor keyed at 31 to the side sills ID of the said frame or stand A.

Arranged at opposite ends of the carriage l5 are fulcrum ledges orplates 38 which function to fulcrum alternately opposite ends of thework 33 so as to assure the proper set of the work in a tilting positionas governed by the gauge with respect to the blade or knife 26 onreciprocation of the carriage l5 for reverse stroking action thereof. Inthis manner the shakes or shingles are split from the bottom face of theblock 33 without the necessity of having to turn the block from end toend and assuring a tapering thickness from butt to tip of the saidshakes or shingles thus split or cut in the operation of the machine.

In the frame or stand A and located in the path of reverse movements ofthe rocking gauge is a pair of resilient tripping switches 39, whichalternately under reverse movements of the carriage 5 operate upon thetilting gauge to reverse the tilt thereof so that the block 33 will becut from both ends in the splitting of shakes or shingles therefrom.These switches 39 are supported upon transverse bars 40 arrangedcrosswise of the frame or stand A and fixed to the bottom edges of theside sills l0 thereof, the shoes 29 being adapted to ride upon theswitches 39 and in this manner the tilting gauge will be reversely andalternately tilted under the reciprocation of the carriage l5 in theworking of the machine for shake splitting or shingle making operationthereof.

The fulcrum ledges or plates 38 on the carriage I5 constitute end restsfor the block 33 so as to slant such block while the rocking gaugeregulates the extent of slant of the block 33 with relation to the knifeor blade 26 so that the shakes or shingles when split or cut from theblock will taper from the butt to the tip ends thereof.

The adjusting screws 3| in the shoes 29 are gauge.

The ledges or plates 38 are detachably secured in place at opposite endsof the carriage 45.

The springs 34 acting upon the axle 28 of the rocking gauge function tohold the latter yieldably in its elevated position in the carriage I 5.The work 33, which is in the form of a block, on introduction into themachine is placed upon the carriage l5 so that one end of the block willbe at rest at the high portion of the fulcrum ledge or plate 38 whilethe other end of said block will rest upon the gauge plate 30 nextthereto of the gauge, the latter being in a determined sloping positionto hold the block 33 at a required angle to a horizontal plane so thaton contact of the said block 33 with the abutment 37 on the frame l0upon movement of the carriage I 5 in one direction the knife or blade 26will cut the block for the purpose hereinbefore set forth.

What is claimed is:

1. A machine of the kind described comprising a stationary support,spaced parallel tracks fixed in said support, a carriage reciprocatinglymovable upon said tracks, a double edged cutting blade fixedtransversely of the carriage intermediate thereof, a work holder abovethe carriage and holding the work in the path of said blade, rockingmeans fitted with the carriage and acting upon the work in the holderfor reversely inclining the same with relation to the blade when thelatter has moved to opposite sides of said work, means adjustably fittedwith the first-named means for varying the inclined lay of the work withrelation to the blade, means on the support in the path of thefirst-named means for automatically reversing the same on reciprocationof said carriage, and a spring-tensioned displaceable arbor foryieldably supporting the said first-named means.

2. A machine of the kind described comprising a stationary support,spaced parallel tracks fixed in said support, a carriage reciprocatinglymovable upon said tracks, a double edged cutting blade fixedtransversely of the carriage intermediate thereof, a work holder abovethe carriage and holding the work in the path of said blade, rockingmeans fitted with the carriage and acting upon the work in the holderfor reversely inclining the same with relation to the blade when thelatter has moved to opposite sides of said work, means adjustably fittedwith the firstnamed means for varying the inclined lay of the work withrelation to the blade, means on the support in the path of thefirst-named means for automatically reversing the same on reciprocationof said carriage, a spring-tensioned displaceable arbor for yieldablysupporting the said first-named means, and fulcrum ledges mounted on thecarriage at opposite sides of the firstnamed means for effecting properset of the work in the work holder and cooperating with said first-namedmeans at the completing of the movement of the carriage in onedirection.

ELSWORTH H. JENKINS.

